1KBR

CRYSTAL STRUCTURE OF UNLIGATED HPPK(R92A) FROM E.COLI AT 1.55 ANGSTROM RESOLUTION


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1IM6PDB ID 1IM6

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.5292PEG4000, SODIUM CHLORIDE, ACETATE , pH 8.50, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K
Crystal Properties
Matthews coefficientSolvent content
1.9635

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 36.34α = 90
b = 46.943β = 110.49
c = 42.907γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4MIRROR2001-10-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X9B0.97946NSLSX9B

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.553096.30.09314.58824.246192621926222.2
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.551.6192.50.511.82484.0121843

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE RPDB ID 1IM61.553024181091359194491.60.1920.160.1680.208RANDOM23.307
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
411701491
RMS Deviations
KeyRefinement Restraint Deviation
s_similar_adp_cmpnt0.065
s_non_zero_chiral_vol0.06
s_approx_iso_adps0.054
s_zero_chiral_vol0.049
s_anti_bump_dis_restr0.028
s_from_restr_planes0.027
s_angle_d0.025
s_bond_d0.008
s_similar_dist
s_rigid_bond_adp_cmpnt
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1277
Nucleic Acid Atoms
Solvent Atoms230
Heterogen Atoms1

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
SHELXL-97refinement